Impurities & Reference Standards
API Impurities
Source 1942 api impurities for research, QC and production, documented with COA and SDS.
14,098products
1,516in stock
COA + SDSwith every lot
11b,21,21-Trihydroxy-6a-methylpregna-1,4-diene-3,20-dione
- CAS
- 1338549-01-1
- Formula
- C22H30O5
- MW
- 374.5 g/mol
VQ-038370
11α,17,21-Trihydroxy-16α-methylpregna-1,4-diene-3,20-dione
- CAS
- 78761-59-8
- Formula
- C22H30O5
- MW
- 374.5 g/mol
VQ-043135
11β,17,21-Trihydroxy-16β-methylpregna-1,4-diene-3,20-dione
- CAS
- 2597-76-4
- Formula
- C22H30O5
- MW
- 374.5 g/mol
VQ-028814
12-Mercapto-8-methoxy-1,3-dimethylbenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2-ol
- CAS
- 2748245-58-9
- Formula
- C16H15N3O2S
- MW
- 313.4 g/mol
VQ-037088
Need a price, a spec or a custom compound?
Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.